Core i7-975 vs Xeon E3-1226 v3
Aggregate performance score
Xeon E3-1226 v3 outperforms i7-975 by an impressive 59% based on our aggregate benchmark results.
Primary details
Comparing Xeon E3-1226 v3 and Core i7-975 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 1444 | 1739 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 1.60 | 0.74 |
| Market segment | Server | Desktop processor |
| Series | Xeon (Desktop) | Core i7 (Desktop) |
| Architecture codename | Haswell-WS (2013) | Bloomfield (2008−2010) |
| Release date | 11 May 2014 (10 years ago) | June 2009 (15 years ago) |
| Launch price (MSRP) | $213 | $476 |
| Current price | $198 (0.9x MSRP) | $250 (0.5x MSRP) |
Cost-effectiveness evaluation
Performance per price, higher is better.
Xeon E3-1226 v3 has 116% better value for money than i7-975.
Detailed specifications
Xeon E3-1226 v3 and Core i7-975 basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.
| Physical cores | 4 (Quad-Core) | 4 (Quad-Core) |
| Threads | 4 | 8 |
| Base clock speed | 3.3 GHz | 3.33 GHz |
| Boost clock speed | 3.7 GHz | 3.6 GHz |
| Bus support | no data | 1333 MHz |
| L1 cache | 64K (per core) | 64 KB (per core) |
| L2 cache | 256K (per core) | 256 KB (per core) |
| L3 cache | 8 MB (shared) | 8 MB (shared) |
| Chip lithography | 22 nm | 45 nm |
| Die size | 160 mm2 | 263 mm2 |
| Maximum core temperature | no data | 68 °C |
| Number of transistors | 1,400 million | 731 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | No | Yes |
Compatibility
Information on Xeon E3-1226 v3 and Core i7-975 compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.
| Number of CPUs in a configuration | 1 | 1 |
| Socket | FCLGA1150 | FCLGA1366 |
| Power consumption (TDP) | 84 Watt | 130 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon E3-1226 v3 and Core i7-975. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 | Intel® SSE4.2 |
| AES-NI | + | - |
| AVX | + | no data |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | 2.0 | 1.0 |
| Hyper-Threading Technology | - | + |
| TSX | + | no data |
| Idle States | + | + |
| Thermal Monitoring | + | - |
| Flex Memory Access | + | no data |
| SIPP | + | no data |
| Demand Based Switching | no data | - |
| PAE | no data | 36 Bit |
| FDI | + | no data |
| Fast Memory Access | + | no data |
| Status | Discontinued | Discontinued |
Security technologies
Xeon E3-1226 v3 and Core i7-975 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
| EDB | + | + |
| Secure Key | + | no data |
| Identity Protection | + | no data |
| OS Guard | + | no data |
| Anti-Theft | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon E3-1226 v3 and Core i7-975 are enumerated here.
| AMD-V | + | no data |
| VT-d | + | no data |
| VT-x | + | + |
| EPT | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon E3-1226 v3 and Core i7-975. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR3 |
| Maximum memory size | 32 GB | 24 GB |
| Max memory channels | 2 | 3 |
| Maximum memory bandwidth | 25.6 GB/s | 25.6 GB/s |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel HD P4600 | no data |
| Max video memory | 1.7 GB | no data |
| Quick Sync Video | + | no data |
| Clear Video HD | + | no data |
| Graphics max frequency | 1.2 GHz | no data |
| Execution Units | 20 | no data |
| InTru 3D | + | no data |
Graphics interfaces
Available interfaces and connections of Xeon E3-1226 v3 and Core i7-975 integrated GPUs.
| Number of displays supported | 3 | no data |
| eDP | + | no data |
| DisplayPort | + | no data |
| HDMI | + | no data |
| VGA | + | no data |
Graphics image quality
Maximum display resolutions supported by Xeon E3-1226 v3 and Core i7-975 integrated GPUs, including resolutions over different interfaces.
| Max resolution over HDMI 1.4 | 3840x2160@60Hz | no data |
| Max resolution over DisplayPort | 3840x2160@60Hz | no data |
| Max resolution over VGA | 2880x1800@60Hz | no data |
Graphics API support
APIs supported by Xeon E3-1226 v3 and Core i7-975 integrated GPUs, sometimes API versions are included.
| DirectX | 11.2 | no data |
| OpenGL | 4.3 | no data |
Peripherals
Specifications and connection of peripherals supported by Xeon E3-1226 v3 and Core i7-975.
| PCIe version | 3.0 | no data |
| PCI Express lanes | 16 | no data |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
Xeon E3-1226 v3 outperforms Core i7-975 by 59% based on our aggregate benchmark results.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.
Benchmark coverage: 68%
Xeon E3-1226 v3 outperforms Core i7-975 by 59% in Passmark.
GeekBench 5 Single-Core
GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.
Benchmark coverage: 42%
Xeon E3-1226 v3 outperforms Core i7-975 by 115% in GeekBench 5 Single-Core.
GeekBench 5 Multi-Core
GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.
Benchmark coverage: 42%
Xeon E3-1226 v3 outperforms Core i7-975 by 76% in GeekBench 5 Multi-Core.
Cinebench 10 32-bit single-core
Cinebench R10 is an ancient ray tracing benchmark for processors by Maxon, authors of Cinema 4D. Its single core version uses just one CPU thread to render a futuristic looking motorcycle.
Benchmark coverage: 20%
Xeon E3-1226 v3 outperforms Core i7-975 by 30% in Cinebench 10 32-bit single-core.
Cinebench 10 32-bit multi-core
Cinebench Release 10 Multi Core is a variant of Cinebench R10 using all the processor threads. Possible number of threads is limited by 16 in this version.
Benchmark coverage: 19%
Xeon E3-1226 v3 outperforms Core i7-975 by 14% in Cinebench 10 32-bit multi-core.
wPrime 32
wPrime 32M is a math multi-thread processor test, which calculates square roots of first 32 million integer numbers. Its result is measured in seconds, so that the less is benchmark result, the faster the processor.
Benchmark coverage: 18%
Xeon E3-1226 v3 outperforms Core i7-975 by 33% in wPrime 32.
Pros & cons summary
| Performance score | 3.59 | 2.26 |
| Threads | 4 | 8 |
| Cost | $213 | $476 |
| Chip lithography | 22 nm | 45 nm |
| Power consumption (TDP) | 84 Watt | 130 Watt |
The Xeon E3-1226 v3 is our recommended choice as it beats the Core i7-975 in performance tests.
Be aware that Xeon E3-1226 v3 is a server/workstation processor while Core i7-975 is a desktop one.
Should you still have questions on choice between Xeon E3-1226 v3 and Core i7-975, ask them in Comments section, and we shall answer.
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